Question

An atom in the ground state contains 8 valence electrons this atom is classified as a

Answer 1

Noble gas

Step-by-step explanation:

With the exception of helium, all elements in Group 18 contain 8 electrons in the outermost shell; these are the noble gases.

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Translation

Answer 2

Noble Gas. Metals have 1 or 2 Valence Electrons. Halogens have 7 Valence Electrons. Semi-Metals can have different amounts.